First European Conference on Speech Communication and Technology

Paris, France
September 27-29, 1989

Efficient Excitation Model and Fast Selection in CELP Coding of Speech

M. Delprat, M. Lever, C. Gruet

MATRA Communication, Bois d'Arcy, France

The paper discusses several new approaches for efficiently modeling and selecting the excitation in CELP coding of speech. Modified error criteria and structured codebooks lead to a wide range of complexity reduction methods, that are evaluated in terms of quality and computational requirements. A very low complexity, though high quality, Regular Pulse (RP) CELP technique is then derived. Finally we address the design of a robust 6 kbps RPCELP coder for mobile radio communications.

Full Paper

Bibliographic reference.  Delprat, M. / Lever, M. / Gruet, C. (1989): "Efficient excitation model and fast selection in CELP coding of speech", In EUROSPEECH-1989, 1310-1313.